Fuel Pressure Service Valve for CTS-V and Silverado

Quick answer

If your 2009-14 CTS-V or 1999-01 Silverado has inconsistent fuel pressure or poor performance, a direct-replacement DeatschWerks performance regulator can restore proper flow and pressure hold.

Diagnosis: Fuel pressure trouble

• Symptom: Engine stumbles or loses power under load; fuel pressure gauge shows pressure sag below 55 psi (CTS-V) or below spec (Silverado).
• Likely cause: Worn or stuck factory fuel pressure regulator cannot hold pressure or flow enough fuel for demand.
• Corrective action: Replace with the DeatschWerks direct-replacement performance regulator for your model. For the CTS-V use part 2680475; for the Silverado use part 2680470. No tuning or adapters needed. After installation, verify pressure holds at target and test drive under load.
• Stop or choose another option: If your vehicle is not a 2009-14 CTS-V or 1999-01 Silverado, or if you need adjustable base pressure, these direct-replacement regulators are not the right fit. Look for an adjustable regulator or a model specific to your vehicle.

Product facts

• 2009-14 CTS-V Direct-Replacement Performance Regulator - High Pressure: Direct-replacement fitment for 2009-14 CTS-V models; increases maximum pressure hold from 55 psi to 90 psi. This means the regulator can maintain higher fuel pressure during performance driving, reducing the chance of pressure drop at high RPM.

  

• 1999-01 Silverado Performance Regulator: Direct-replacement design for 1999-2001 Chevy Silverado models; high-flow construction supports increased fuel delivery. The high-flow design helps ensure the engine gets enough fuel during acceleration or when towing, preventing lean conditions.